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“decrease in dry weight”

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Virus infection decreased total dry weight mainly through tuber dry weight loss.

Taxon: potato plantsSolanum tuberosume0
Material: Craig's Defiancee0
Organ / stage: tuberse0
Treatment: infection with leaf‐roll viruse0
Interactor: leaf‐roll viruse0pathogen
Outcome: total dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“decrease in total dry weight of potato plants (var. Craig's Defiance) caused by infection with leaf‐roll virus was almost entirely at the expense of the tubers”
✓ located verbatim in the source · abstract, characters 4–163

Title

AN ANALYSIS OF THE EFFECTS OF INFECTION WITH LEAF‐ROLL VIRUS ON THE GROWTH AND YIELD OF POTATO PLANTS, AND OF ITS INTERACTIONS WITH NUTRIENT SUPPLY AND SHADING

D. J. WATSON; J. H. WILSON Annals of Applied Biology 1956. doi:10.1111/j.1744-7348.1956.tb02134.x

Other claims from this paper (19)

Intervention effect Infection increased leaf and stem dry weight.
Intervention effect Infection slightly decreased root and stolon dry weight.
Intervention effect Nitrogenous fertilizer reduced virus-related tuber dry weight loss.
Intervention effect Phosphorus and potassium did not affect virus-related tuber loss.
Intervention effect Infection decreased net assimilation rate through early July.
Observation Infected plants had higher later net assimilation rate.
Intervention effect Infection decreased leaf area until early July.
Intervention effect Infection delayed leaf senescence and increased late leaf area.
Observation Mean infection-related net assimilation rate decrease was about 20%.
Observation Mean infection-related leaf area decrease was 4%.
Mechanism Older rolled leaves had diminished photosynthetic efficiency underlying lower net assimilation.
Observation Nutrient effects on net assimilation and interactions with infection were small and rarely significant.
Intervention effect Nitrogenous fertilizer increased leaf area throughout growth.
Intervention effect Phosphorus increased early leaf area.
Intervention effect Phosphorus hastened senescence and decreased August leaf area.
Intervention effect Potassium increased leaf area particularly later in growth.
Observation Infected plants had more leaves than healthy plants beyond early growth.
Intervention effect Shading decreased net assimilation rate and increased leaf area without affecting yield.
Observation Virus-related yield loss was smaller in Up-to-Date than Craig’s Defiance.

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Lower plant dry-weight percentage was inferred to promote injury.

Taxon: Rape PlantsBrassica napust0
Organ / stage: plant bodye0
Outcome: the injurye0
Direction: promotee0
Qualifier: decrease in the percentage of dry weight of plant bodye0

Verbatim

e0
“the decrease in the percentage of dry weight of plant body and the rise in the top-root ratio, might have been liable to promote the injury”
✓ located verbatim in the source · abstract, characters 481–620

t0
“Rape Plants”
✓ located verbatim in the source · title, characters 57–68

Title

Studies on Shrinking of Plant and Failing in Ripening in Rape Plants

Chikami KANNO; Takaichi KOMEMOTO; Yasushi GOTO Japanese Journal of Crop Science 1955. doi:10.1626/jcs.24.20

Other claims from this paper (19)

Observation Rape varieties differed in resistance to the injury.
Association Nursery conditions were inferred to strongly influence injury onset.
Association Accelerated seedling growth was inferred to promote injury.
Mechanism A higher top-root ratio was inferred to promote injury.
Association Aphis showed no observed relation to injury.
Association Seedling characters and field conditions were inferred to influence injury.
Intervention effect Early sowing controlled the injuries.
Intervention effect Early transplanting controlled the injuries.
Intervention effect Late culture increased injury.
Association Transplanting time influenced injury more than sowing time.
Intervention effect Nitrogen was inferred to promote injury, particularly ripening failure.
Intervention effect Potash was inferred to promote injury, particularly ripening failure.
Intervention effect Phosphorus was inferred to promote injury, particularly ripening failure.
Intervention effect Compost application effectively prevented injury.
Intervention effect Wood ash applied in fields was the most effective injury control.
Intervention effect Wood ash applied in nursery beds was somewhat beneficial.
Intervention effect Boron application in basic fertilizer, as top dressing, or by spraying controlled injury.
Mechanism The authors attributed much of the injury to plant boron deficiency affected by growth conditions.
Mechanism The authors attributed compost and wood ash benefits to their boron content.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The acid decreased final dry weight of seeds produced by 22%.

Taxon: snap-beane0
Treatment: Application of the acide4
Outcome: final dry weight of seeds producede4
Direction: decreasee4
Value: 22%e4

Not reportedComparator

Verbatim

e0
“4-Chlorophenoxyacetic acid (4-Cl) was applied as a spray or a dip treatment to attached snap-bean fruits”
✓ located verbatim in the source · abstract, characters 3–107

e4
“Application of the acid brought about a decrease of 22% in final dry weight of seeds produced”
✓ located verbatim in the source · abstract, characters 586–679

Title

Effect of Growth-Regulating Substances on the Water-Retaining Capacity of Bean Plants

John W. Mitchell; Paul C. Marth Botanical Gazette 1950. doi:10.1086/335627

Other claims from this paper (15)

Intervention effect One thousand ppm 4-Cl retarded maturation of attached snap-bean fruits.
Intervention effect Fresh weight of treated snap-bean fruits was 11.2% greater than untreated fruit when harvested 1 week after treatment.
Intervention effect Fresh weight of treated snap-bean fruits was 10.1% greater than untreated fruit when harvested 2 weeks after treatment.
Intervention effect Fresh weight of treated snap-bean fruits was 11.4% greater than untreated fruit when harvested 3 weeks after treatment.
Intervention effect Treated snap-bean fruits contained 2.3% more moisture than untreated fruit when harvested 1 week after treatment.
Intervention effect Treated snap-bean fruits contained 8.7% more moisture than untreated fruit when harvested 2 weeks after treatment.
Intervention effect Treated snap-bean fruits contained 14.0% more moisture than untreated fruit when harvested 3 weeks after treatment.
Intervention effect Treated snap-bean pods were 14% heavier in dry weight than untreated pods at maturity.
Intervention effect Sprays of 4-Cl at 250 to 1000 p.p.m. reduced the final yield of fresh snap-bean fruit.
Intervention effect The most concentrated spray (1000 p.p.m. 4-Cl) reduced the final yield of fresh snap-bean fruit by 44%.
Intervention effect A 50 p.p.m. spray did not significantly reduce snap-bean yield under the conditions used.
Intervention effect Sprays of 4-Cl at 50 to 1000 p.p.m. increased the water-retaining capacity of snap-bean fruit when harvested and stored.
Intervention effect The acid retarded the rate of colour change in harvested and stored snap-bean fruit.
Intervention effect Applying 4-Cl in a wax emulsion was more effective than an equal concentration in aqueous spray in retarding moisture evaporation from harvested snap-bean fruit.
Intervention effect Fruit sprayed with the wax-growth-regulator mixture lost about 25% less moisture than unsprayed fruit during the first week of storage.

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Accelerated seedling growth was inferred to promote injury.

Taxon: Rape PlantsBrassica napust0
Organ / stage: seedlinge0
Outcome: the injurye0
Direction: promotee0
Qualifier: acceleration of seedling growthe0

Verbatim

e0
“those factors causing the acceleration of seedling growth, the decrease in the percentage of dry weight of plant body and the rise in the top-root ratio, might have been liable to promote the injury”
✓ located verbatim in the source · abstract, characters 422–620

t0
“Rape Plants”
✓ located verbatim in the source · title, characters 57–68

Title

Studies on Shrinking of Plant and Failing in Ripening in Rape Plants

Chikami KANNO; Takaichi KOMEMOTO; Yasushi GOTO Japanese Journal of Crop Science 1955. doi:10.1626/jcs.24.20

Other claims from this paper (19)

Observation Rape varieties differed in resistance to the injury.
Association Nursery conditions were inferred to strongly influence injury onset.
Association Lower plant dry-weight percentage was inferred to promote injury.
Mechanism A higher top-root ratio was inferred to promote injury.
Association Aphis showed no observed relation to injury.
Association Seedling characters and field conditions were inferred to influence injury.
Intervention effect Early sowing controlled the injuries.
Intervention effect Early transplanting controlled the injuries.
Intervention effect Late culture increased injury.
Association Transplanting time influenced injury more than sowing time.
Intervention effect Nitrogen was inferred to promote injury, particularly ripening failure.
Intervention effect Potash was inferred to promote injury, particularly ripening failure.
Intervention effect Phosphorus was inferred to promote injury, particularly ripening failure.
Intervention effect Compost application effectively prevented injury.
Intervention effect Wood ash applied in fields was the most effective injury control.
Intervention effect Wood ash applied in nursery beds was somewhat beneficial.
Intervention effect Boron application in basic fertilizer, as top dressing, or by spraying controlled injury.
Mechanism The authors attributed much of the injury to plant boron deficiency affected by growth conditions.
Mechanism The authors attributed compost and wood ash benefits to their boron content.

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